Bubble bag sealing knife and sealing mechanism

Abstract

The utility model discloses a bubble bag sealing knife and a sealing mechanism, the bubble bag sealing knife comprises a sealing knife body and a heater used for heating the sealing knife body, and one side of the sealing knife body is provided with a sealing strip extending along the length direction; blades are fixed to the upper side and the lower side of a sealing strip of the sealing cutter body respectively, and the side edges of the blades on the two sides are provided with spine parts protruding out of the side edges of the sealing strip. The bubble bag sealing device can be used for sealing a bubble bag, and a seal formed by the bubble bag can be more attractive.

Description

Technical Field

[0001] This utility model relates to the field of bubble bag packaging technology, specifically to a bubble bag sealing knife and sealing mechanism. Background Technology

[0002] Bubble bags are a common packaging material consisting of a plastic film (usually polyethylene film) and air bubbles filled within it. These bubbles are evenly distributed between the films, providing cushioning and shock absorption, and are therefore widely used in e-commerce logistics packaging.

[0003] Currently, bubble bags are generally sealed using heat sealing. Heat sealing uses heat to melt the plastic film at the sealing point of the bubble bag, and then presses it together under certain pressure. However, because bubble bags contain air bubbles, the seal formed by traditional heat sealing knives is not very aesthetically pleasing. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a bubble bag sealing knife and sealing mechanism to make the bubble bag seal more aesthetically pleasing.

[0005] On the one hand, this utility model provides a bubble bag sealing knife, including a sealing knife body and a heater for heating the sealing knife body, wherein one side of the sealing knife body has a sealing strip extending along the length direction;

[0006] The sealing strip of the sealing knife body is fixed with blades on both the upper and lower sides, and the sides of the blades have spikes protruding from the sides of the sealing strip.

[0007] Furthermore, the spike is conical, and the side of the spike closest to the sealing strip is flush with the corresponding side of the sealing strip.

[0008] Furthermore, the side edge of the blade is flush with the side edge of the sealing strip.

[0009] Furthermore, the heater is a heating tube placed inside the sealing knife body.

[0010] Furthermore, a thermocouple is also provided inside the sealing blade body.

[0011] On the other hand, this utility model provides a bubble bag sealing mechanism, including a sealing assembly and the aforementioned sealing knife, wherein the sealing assembly includes:

[0012] A pressure strip holder, wherein one side of the pressure strip holder is provided with an elastic pressure strip that is parallel to and opposite to the sealing strip;

[0013] A sealing execution unit is used to drive the pressure strip seat to move towards or away from the sealing knife.

[0014] Furthermore, the pressing assembly also includes a pressing assembly mounting bracket, on which slide rails are arranged opposite each other on the left and right sides, and a slider is installed on each slide rail, and the pressing strip seat is fixedly connected to each slider respectively;

[0015] The sealing execution unit is a telescopic cylinder, which is arranged in parallel between two slide rails and fixed on the sealing assembly mounting bracket. The output end of the telescopic cylinder is connected to the sealing strip seat.

[0016] Furthermore, the pressure strip seat has an L-shaped groove extending along its length on the side facing the sealing knife, the elastic pressure strip is placed in the L-shaped groove, and a pressure plate is detachably installed on one side of the pressure strip seat to press against the elastic pressure strip.

[0017] Furthermore, it also includes a sealing knife fixing frame, the sealing knife body is fixed on the sealing knife fixing frame, and a heat insulation pad is provided between the sealing knife body and the sealing knife fixing frame.

[0018] Furthermore, it also includes a bag detector for detecting bags that have moved to the sealing point.

[0019] The beneficial effects of this utility model are reflected in:

[0020] This application provides blades on both the upper and lower sides of the sealing strip, with spikes on the sides of the blades. During the process of sealing the bubble bag by pressing it against the sealing strip, the spikes first puncture the bubbles in the sealing area of ​​the bubble bag to release air, and then the sealing strip heat-seals the punctured sealing area. This makes the seal formed by the bubble bag more aesthetically pleasing. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a schematic diagram of the bubble bag sealing mechanism from one perspective of an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the bubble bag sealing mechanism from another perspective of an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the sealing knife structure according to an embodiment of the present utility model;

[0025] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0026] Figure 5 This is a schematic diagram of the structure of the pressure port assembly in an embodiment of this utility model.

[0027] Figure label:

[0028] 100-Sealing knife body; 110-Sealing strip; 120-Blade; 121-Spiked part; 200-Heater; 300-Thermocouple; 400-Pressure strip seat; 410-Elastic pressure strip; 420-L-shaped groove; 430-Pressure plate; 500-Pressure sealing assembly mounting bracket; 510-Slide rail; 520-Slider; 530-Telescopic cylinder; 600-Sealing knife fixing bracket; 610-Heat insulation pad; 700-Bag detector. Detailed Implementation

[0029] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0030] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0031] like Figure 3 and Figure 4 As shown, this utility model embodiment provides a bubble bag sealing knife, including a sealing knife body 100 and a heater 200 for heating the sealing knife body 100. One side of the sealing knife body 100 has a sealing strip 110 extending along the length direction.

[0032] The sealing strip 110 of the sealing knife body 100 is fixed with blades 120 on both the upper and lower sides, and the sides of the blades 120 have spikes 121 protruding from the sides of the sealing strip 110.

[0033] This application provides blades 120 on both the upper and lower sides of the sealing strip 110 and sharp points 121 on the sides of the blades 120. During the process of sealing the bubble bag by pressing it against the sealing strip 110, the sharp points 121 first puncture the bubbles in the sealing area of ​​the bubble bag to release air, and then the sealing strip 110 heat-seals the punctured sealing area. This makes the seal formed by the bubble bag more aesthetically pleasing.

[0034] In some embodiments, the spike 121 is tapered, and the side of the spike 121 near the sealing strip 110 is flush with the corresponding side of the sealing strip 110. This ensures the strength of the spike 121 and also ensures that the tip of the spike 121 is as close as possible to the sealing strip 110.

[0035] In some embodiments, the side of the blade 120 is flush with the side of the sealing strip 110. When sealing the bubble bag, the sides of the blade 120 and the sealing strip 110 simultaneously heat seal the bubble bag to ensure the flatness of the seal.

[0036] It is understandable that the blade 120 can be fixed to both sides of the sealing strip 110 by bolts, or it can be integrally formed with the sealing strip 110. In order to facilitate the processing of the spike 121 and to facilitate the replacement of the blade 120, the blade 120 is preferably fixed to both sides of the sealing strip 110 by bolts.

[0037] In some embodiments, the heater 200 is a heating tube placed inside the sealing knife body 100.

[0038] In some embodiments, a thermocouple 300 is also provided inside the sealing knife body 100. The thermocouple 300 is used to monitor the temperature of the sealing knife body 100 to facilitate control of the heat sealing temperature.

[0039] like Figures 1-5 As shown, this utility model embodiment also provides a bubble bag sealing mechanism, including a sealing assembly and the sealing knife described above.

[0040] The sealing assembly includes a sealing strip seat 400 and a sealing execution unit. One side of the sealing strip seat 400 is provided with an elastic sealing strip 410 that is parallel to and opposite to the sealing strip 110. The elastic sealing strip 410 can be made of adhesive strip.

[0041] The sealing execution unit is used to drive the pressure strip seat 400 to move towards or away from the sealing knife.

[0042] Specifically, refer to Figure 2 The crimping assembly also includes a crimping assembly mounting bracket 500. The crimping assembly mounting bracket 500 has slide rails 510 arranged on the left and right sides respectively. Each slide rail 510 is equipped with a slider 520. The crimping strip seat 400 is fixedly connected to each slider 520.

[0043] The sealing execution unit is a telescopic cylinder 530, which is arranged in parallel between two slide rails 510 and fixed on the sealing assembly mounting bracket 500. The output end of the telescopic cylinder 530 is connected to the sealing strip seat 400.

[0044] Optionally, the telescopic cylinder 530 can be a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0045] During sealing, the bubble bag moves between the pressure strip seat 400 and the sealing knife. The telescopic cylinder 530 drives the pressure strip seat 400 to press the bubble bag against the sealing knife. The elastic pressure strip 410 on the side of the pressure strip seat 400 presses the sealing area of ​​the bubble bag onto the sealing strip 110 of the sealing knife. The sealing strip 110 heats and melts the bubble bag for heat sealing. Finally, the pressure strip seat 400 is retracted by the telescopic cylinder 530.

[0046] By setting the elastic pressure strip 410, when sealing, the pressure strip seat 400 presses the area of ​​the bubble bag to be sealed onto the sealing strip 110 of the sealing knife through the elastic pressure strip 410. The elastic pressure strip 410 can not only play the role of elastic buffering and ensure that the area of ​​the bubble bag to be sealed is pressed firmly onto the sealing strip 110, but also prevent the tip of the blade 120 from piercing hard objects and causing wear on the tip of the tip 121.

[0047] In some embodiments, the pressure strip seat 400 is provided with an L-shaped groove 420 extending along the length direction on the side facing the sealing knife, and the elastic pressure strip 410 is placed in the L-shaped groove 420. A pressure plate 430 is detachably installed on one side of the pressure strip seat 400 and pressed on the elastic pressure strip 410. The pressure plate 430 and the pressure strip seat 400 can be connected by bolts, which facilitates the replacement of the elastic pressure strip 410.

[0048] In some embodiments, the bubble wrap sealing mechanism further includes a sealing knife fixing bracket 600, with the sealing knife body 100 fixed to the sealing knife fixing bracket 600. A heat insulation gasket 610 is provided between the sealing knife body 100 and the sealing knife fixing bracket 600, and the sealing knife body 100 and the sealing knife fixing bracket 600 can be fixedly connected by bolts. The sealing knife fixing bracket 600 serves to support and fix the sealing knife, and the heat insulation gasket 610 provided between the sealing knife body 100 and the sealing knife fixing bracket 600 can reduce heat transfer between the sealing knife body 100 and the sealing knife fixing bracket 600.

[0049] In some embodiments, the bubble bag sealing mechanism further includes a bag detector 700, which is used to detect the bag that has moved to the sealing knife. The bag detector 700 may be a photoelectric sensor. When the bubble bag is detected to have moved to the sealing knife, the sealing execution unit can be automatically controlled to drive the pressure strip seat 400 to press against the sealing knife, thereby realizing automatic control of sealing.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A bubble wrap sealing knife, comprising a sealing knife body and a heater for heating the sealing knife body, wherein one side of the sealing knife body has a sealing strip extending along its length, characterized in that: The sealing strip of the sealing knife body is fixed with blades on both the upper and lower sides, and the sides of the blades have spikes protruding from the sides of the sealing strip.

2. The bubble bag sealing knife according to claim 1, characterized in that: The spike is conical, and the side of the spike closest to the sealing strip is flush with the corresponding side of the sealing strip.

3. The bubble bag sealing knife according to claim 1, characterized in that: The side of the blade is flush with the side of the sealing strip.

4. The bubble bag sealing knife according to claim 1, characterized in that: The heater is a heating tube placed inside the sealing knife body.

5. The bubble wrap sealing knife according to claim 1, characterized in that: The sealing blade body is also equipped with a thermocouple.

6. A bubble bag sealing mechanism, characterized in that: The assembly includes a crimping component and a sealing knife as described in any one of claims 1-5, wherein the crimping component comprises: A pressure strip holder, wherein one side of the pressure strip holder is provided with an elastic pressure strip that is parallel to and opposite to the sealing strip; A sealing execution unit is used to drive the pressure strip seat to move towards or away from the sealing knife.

7. The bubble bag sealing mechanism according to claim 6, characterized in that: The pressing assembly also includes a pressing assembly mounting frame, on which slide rails are arranged opposite each other on the left and right sides, and sliders are installed on each slide rail. The pressing strip seat is fixedly connected to each slider. The sealing execution unit is a telescopic cylinder, which is arranged in parallel between two slide rails and fixed on the sealing assembly mounting bracket. The output end of the telescopic cylinder is connected to the sealing strip seat.

8. The bubble bag sealing mechanism according to claim 6, characterized in that: The pressure strip seat has an L-shaped groove extending along its length on the side facing the sealing knife. The elastic pressure strip is placed in the L-shaped groove, and a pressure plate that presses against the elastic pressure strip is detachably installed on one side of the pressure strip seat.

9. The bubble bag sealing mechanism according to claim 6, characterized in that: It also includes a sealing knife fixing frame, the sealing knife body is fixed on the sealing knife fixing frame, and a heat insulation gasket is provided between the sealing knife body and the sealing knife fixing frame.

10. The bubble bag sealing mechanism according to claim 6, characterized in that: It also includes a bag detector, which is used to detect bags that have moved to the sealing point.

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